교과서textbook 도서관library 독서reading 서류document; papers 서점bookstore 엽서postcard 추천서letter of recommendation; letter of reference 가입서registration documents 계산서check; bill 계약서contract; written agreement

퇴원leaving the hospital; being discharged from the hospital 학원school 대학원graduate school 대학원생graduate student 병원hospital; clinic 입원hospitalization 개원opening of a hospital; opening of an institute 고시원accommodations for students studying for exams 미장원beauty parlor; beauty salon 어학원language school; language institute